A SAMPLER OF SELECTED 2017 BMC AUCTION SPECIMENS (2017 Auction Date is Saturday, 21 January)

Volume 1 [FeS2]

 Locality  Huanzala Mine  Huallanca Huanuco  Peru

 Size  6.5 x 6.0 x 4.8 cm

 BMC Purchase

Crystal System: isometric Physical Properties  Transparency: opaque  Mohs hardness: 6 to 6.5  Density: 4.8 to 5 gm/cm3  : greenish-black to brownish-black Photograph by Mike Haritos  Luster: metallic

Cu3(CO3)2(OH)2

 Locality  Milpillas Mine  Cuitaca  Mun. de Santa Cruz  Sonora, Mexico.

 Size: toe nail

 Donated by Don Olson

Crystal System: monoclinic Physical Properties  Transparency: Transparent, Translucent  Mohs hardness: 3.5 to 4  Density: approx 3.8 gm/cm3 Photograph by Mike Haritos  Streak: light blue  Luster: vitreous [BaSO4]

 Locality  Nador  Morocco

 Size

 8.8 x 6.0 x 5.0 cm

 BMC Purchase

Crystal System: orthorhombic Physical Properties  Transparency: Transparent, Translucent, opaque  Mohs hardness: 3 to 3.5  Density: approx 4.5 gm/cm3  Streak: white  Luster: Vitreous, Pearly Photograph by Mike Haritos Gold [Au]

 Locality  R. J. Roberts Lode  Willow Creek  Pershing County  Nevada

 Size: thumbnail

 BMC Purchase

Crystal System: isometric Physical Properties  Transparency: opaque  Mohs hardness: 2.5 to 3  Density: 15 to 19.3 gm/cm3  Streak: Shining yellow  Luster: metallic Photograph by Mike Haritos [CaF2]

 Locality  Xianghuapu Mine (Maiwan Mine)  Xianghualing Sn- polymetallic ore field  Linwu Co.,  Chenzhou Prefecture  Hunan Province  China.

 Size

 10.8 x 6.2 x 2.8 cm Photograph by Mike Haritos

 Donated by Bill Crystal System: isometric Metropolis Physical Properties  Transparency: transparent  Streak: white  Mohs hardness: 4  Luster: Vitreous, Dull  Density: 3.175 - 3.56 gm/cm3 [CaCO3]

 Locality  Xikuangshan Mine  Dongchuan Cu ore field  Dongchuan District  Kunming Prefecture  Yunnan Province  China  Size: 8.4 x 7.8 x 5.2 cm  BMC Purchase

Crystal System: trigonal Physical Properties  Transparency: transparent, translucent  Mohs hardness: 3  Density: approx 2.71 gm/cm3  Streak: white Photograph by Mike Haritos  Luster: Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly [SiO2] var.

 Locality  Artigas  Artigas Department  Uruguay

 Size  17.0 x 6.1 x 3.5 cm

 Includes custom wood stand (not shown)

 BMC Purchase

Crystal System: trigonal Physical Properties  Transparency: Transparent, Translucent  Mohs hardness: 7  Density: 2.65 to 2.66 gm/cm3  Streak: white Photograph by Mike Haritos  Luster: Vitreous [Pb(MoO4)] & [Pb5(AsO4)3Cl]

 Locality  Rowley Mine.  Maricopa County  Arizona

 Size  Thumbnail

 Includes acrylic stand

 BMC Purchase

Wulfenite Crystal System: Tetragonal Wulfenite Physical Properties  Transparency: Transparent, Translucent, Opaque Photograph by Mike Haritos  Mohs hardness: 2½ - 3  Density: 6.5 to 7.5 gm/cm3  Streak: white  Luster: Adamantine, Sub-Adamantine, Resinous Float Copper [Cu]

 Locality  Upper Peninsula  Michigan

 Size  17.5 x 13.0 x 1.0 cm.

 BMC Purchase

Crystal System: isometric Physical Properties  Transparency: opaque  Mohs hardness: 2.5 to 3  Density: approx 8.95 gm/cm3  Streak: copper - red  Luster: metallic Photograph by Mike Haritos Ammonite Fossil

 Species  Colignoceras  Upper cretaceous

 Locality  Tulear  Madagascar

 Size  10.0 x 9.4 x 2.5

 BMC Purchase

Photograph by Mike Haritos [PbS] & Pyrite [FeS]

 Locality  Krushev dol deposit  Krushev dol mine  Madan ore field  Rhodope Mountains  Smolyan Oblast  Bulgaria  Size: 6.2 x 5.7 x 3.7 cm.  BMC Purchase

Pyrite Crystal System: isometric Pyrite Physical Properties  Transparency: opaque  Mohs hardness: 6 to 6.5  Density: 4.8 to 5 gm/cm3  Streak: greenish-black to Photograph by Mike Haritos brownish-black  Luster: metallic Manganocalcite [(Ca,Mn)CO3] & Pyrite [FeS]

 Locality  Krushev dol deposit (Krusov dol deposit)  Krushev dol mine  Madan ore field  Rhodope Mountains  Smolyan Oblast  Bulgaria

 Size: 11.0 x 5.0 x 3.9 cm

 BMC Purchase

Photograph by Mike Haritos Calcite Crystal System: trigonal Physical Properties  Transparency: transparent, translucent  Mohs hardness: 3  Density: 2.71 gm/cm3  Streak: white  Luster: Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly Galena [PbS] & [ZnS]

 Locality  Krushev dol deposit  Krushev dol mine  Madan ore field  Rhodope Mountains  Smolyan Oblast, Bulgaria  Size: 6.2 x 5.7 x 3.7 cm  BMC Purchase Galena Sphalerite Crystal System Isometric Isometric transparent, Transparency Opaque translucent Hardness 2.5 3.5 to 4 Density 7.58 gm/cm3 3.9 - 4.1 gm/cm3 Photograph by Mike Haritos pale yellow to Streak lead -grey brown adamantine, Luster metallic, dull resinous Calcite [CaCO3]

 Locality  Pune District (Poonah District)  Maharashtra  India  Size: 7.5 x 6.3 x 3.5 cm  BMC Purchase

Calcite Crystal System: trigonal Physical Properties  Transparency: transparent, translucent  Mohs hardness: 3  Density: 2.71 gm/cm3  Streak: white  Luster: Vitreous, Sub-Vitreous, Photograph by Mike Haritos Resinous, Waxy, Pearly [KCa4(Si4O10)2F•8(H2O)] and [NaCa4Al8Si28O72•30(H2O)]

 Locality  Pune District (Poonah District)  Maharashtra  India  Size: 3.9 x 2.7 x 2.3 cm

 BMC Purchase MINERAL Apophyllite Stilbite Crystal System Tetragonal Monoclininc transparent, transparent, Transparency subtransparent, translucent translucent Hardness 4 to 5 3.5 to 4 Density 2.3 - 2.4 gm/cm3 2.1 – 2.2 gm/cm3 Streak white white Photograph by Mike Haritos Luster Vitreous - Pearly Vitreous - Pearly Stilbite [NaCa4Al8Si28O72•30(H2O)] and Stalactitic (Quartz) [SiO2]

 Locality  Pune District (Poonah District)  Maharashtra  India  Size: 4.9 x 1.7 x 1.7 cm

 BMC Purchase

MINERAL Stilbite Chalcedony Crystal System Monoclinic Triclinic transparent, opaque, Photograph by Mike Haritos Transparency subtransparent, transparent, translucent translucent Hardness 3.5 to 4 6.5 to 7 Density 2.1 – 2.2 gm/cm3 2.6 – 2.65 gm/cm3 Streak white white

Luster Vitreous - Pearly Vitreous [(Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O)], Stilbite [NaCa4Al8Si28O72•30(H2O)] & Stalactic Chalcedony

 Locality  Pune District (Poonah District)  Maharashtra  India  Size: 4.5 x 3.0 x 1.5 cm  BMC Purchase

MINERAL Heulandite Stilbite Crystal System Monoclinic Monoclinic transparent, transparent to Transparency subtranslucent translucent Photograph by Mike Haritos Hardness 4 to 5 3.5 to 4 Density 2.2 gm/cm3 2.1 – 2.2 gm/cm3 Streak white white

Luster Vitreous - Pearly Vitreous - Pearly xls. [Be3Al2(Si O3)6]

 Locality  Pingwu beryl mine  Huya W-Sn-Be deposit; (Xuebaoding W-Sn-Be deposit)  Huya township,  Mt Xuebaoding  Pingwu County  Mianyang Prefecture  Sichuan Province, China  Size: 7.8 x 7.1 x 4.0 cm  BMC Purchase

Beryl Crystal System: hexagonal Physical Properties Photograph by Mike Haritos  Transparency: transparent, translucent  Mohs hardness: 7.5 to 8  Density: 2.63 - 2.9 gm/cm3  Streak: white  Luster: Vitreous, Resinous [PbAl3(PO4)2(OH)5•(H2O)]

 Locality  Yangshuo Mine  Yangshuo County  Guilin Prefecture  Guangxi Zhuang Autonomous Region  China  Size: 5.0 x 4.0 x 2.7 cm  Donated by Bill Metropolis

Crystal System: hexagonal Physical Properties  Transparency: opaque, translucent Photograph by Mike Haritos  Mohs hardness: 4 to 5  Density: 4 to 5 gm/cm3  Streak: white  Luster: greasy